concepts.hpp

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#pragma once
 
#include <concepts>
#include <ostream>
#include <string>

namespace steppable::concepts
{
    template<typename T>
    concept Numeric = std::integral<T> || std::floating_point<T>; 
 
    template<typename ObjectT>
    concept Presentable = requires(ObjectT object) {
        { object.present() } -> std::same_as<std::string>;
    };
 
    template<typename ObjectT>
    concept Stream = requires(ObjectT object) {
        { object.operator<<() } -> std::same_as<std::ostream&>;
    };
} // namespace steppable::concepts